titoli, abstracts, parole chiave >>>
Phenoxo bridged tetranuclear copper(II) and dinuclear zinc(II) complexes of 2,6-diformyl-4-methylphenol-di(benzoylhydrazone): synthesis, structure, spectra and magnetism

Das, Kuheli and Mondal, Tapan Kumar and Garribba, Eugenio and Fondo, Matilde and Sinha, Chittaranjan and Datta, Amitabha (2014) Phenoxo bridged tetranuclear copper(II) and dinuclear zinc(II) complexes of 2,6-diformyl-4-methylphenol-di(benzoylhydrazone): synthesis, structure, spectra and magnetism. Inorganica Chimica Acta, Vol. 413 , p. 194-202. ISSN 0020-1693. Article.

Full text not available from this repository.

DOI: 10.1016/j.ica.2014.01.013

Abstract

Phenoxo bridged tetranuclear Cu(II) and dinuclear Zn(II) complexes are synhesized namely, Cu4[(L)2 (OCH3)2] and Zn2(HL)2 (H3L = [(HOC6H2CH3){2,6-(CH@N–N@C(OH)(C6H5))(CH@N–N@C(OH) (C6H5))}]) and characterized by FTIR, UV–Vis, 1H NMR, fluorescence and mass spectrometry. Single crystal X-ray diffraction analysis of 1 shows that the Cu atom possesses a square pyramid environment via bridging of ‘phenolato’-O and ‘enolato’-O of the ligand, additional bridging of ‘methanolato’-O of coordinated CH3OH and monodentate coordination of imine-N. The EPR spectrum of 1 are characterized by gk = 2.286, Ak = 169 104 cm1, g\ = 2.068, A\ = 17 10-4 cm-1 (298 K) and gk = 2.283, Ak = 178 10-4 cm-1, g\ = 2.072, A\ = 15 10-4 cm-1 (77 K). The study of the variable temperature magnetic properties agrees with a predominant intramolecular antiferromagnetic coupling (2J = 186.5 cm-1), rendering a ground state of S = 0.

Item Type:Article
ID Code:9854
Status:Published
Refereed:Yes
Uncontrolled Keywords:Cu(II) and Zn(II), 2,6-Diformyl-4-methylphenol-benzhydrazide, tetranuclear copper(II), X-ray structure, fluorescence, VTM and EPR
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:Elsevier
ISSN:0020-1693
Deposited On:08 Aug 2014 09:52

I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore

Repository Staff Only: item control page